chachong

代码说明：

  主要是比较客户书目和公司书目的异同，剔出客户已有的书目。便于客户选书下订单。 系统采用后台线程。和进度指示。 并且制作了安装程序，具备软件雏形了(Bibliography and more customers are mainly companies bibliography of similarities and differences, bound by existing customers bibliography. Easier for customers to choose the book orders. System uses a background thread. And progress indicator. And making the installation process, with a software prototype)